<template>
<div>
    <el-container>
    <el-header>
        <el-menu :default-active="activeIndex" class="el-menu-demo" mode="horizontal" @select="handleSelect"
        background-color="#545c64"
        text-color="#fff"
        active-text-color="#ffd04b">
            <el-menu-item index="1">处理中心</el-menu-item>

            <el-submenu index="2">
                <template slot="title">我的工作台</template>
                <el-menu-item index="2-1">选项1</el-menu-item>
                <el-menu-item index="2-2">选项2</el-menu-item>
                <el-menu-item index="2-3">选项3</el-menu-item>               
            </el-submenu>

            <el-menu-item index="3" disabled>消息中心</el-menu-item>
            <el-menu-item index="4"><a href="https://www.ele.me" target="_blank">订单管理</a></el-menu-item>
        </el-menu>        

    </el-header>
    <el-container>
        <el-aside width="200px">
            <el-menu 
                router
                default-active="2"
                class="el-menu-vertical-demo"
                @open="handleOpen"
                @close="handleClose">
                <el-submenu index="1">
                    <template slot="title">
                    <i class="el-icon-location"></i>
                    <span>导航一</span>
                    </template>
                    <el-menu-item-group>
                    <template slot="title">分组一</template>
                    <el-menu-item index="1-1">选项1</el-menu-item>
                    <el-menu-item index="1-2">选项2</el-menu-item>
                    </el-menu-item-group>
                    <el-menu-item-group title="分组2">
                    <el-menu-item index="1-3">选项3</el-menu-item>
                    </el-menu-item-group>
                    <el-submenu index="1-4">
                    <template slot="title">选项4</template>
                    <el-menu-item index="1-4-1">选项1</el-menu-item>
                    </el-submenu>
                </el-submenu>
                <el-menu-item index="course">
                    <i class="el-icon-menu"></i>
                    <span slot="title">Course</span>
                </el-menu-item>
                <el-menu-item index="3" disabled>
                    <i class="el-icon-document"></i>
                    <span slot="title">导航三</span>
                </el-menu-item>
                <el-menu-item index="4">
                    <i class="el-icon-setting"></i>
                    <span slot="title">导航四</span>
                </el-menu-item>
            </el-menu>
        </el-aside>
        <el-main>
            <router-view/>    
        </el-main>
    </el-container>
    </el-container>

</div>
</template>

<script>
  export default {
    data() {
      return {
        activeIndex: '1',
        activeIndex2: '1'
      };
    },    
    methods: {
      handleOpen(key, keyPath) {
        console.log(key, keyPath);
      },
      handleClose(key, keyPath) {
        console.log(key, keyPath);
      },
      handleSelect(key, keyPath) {
        console.log(key, keyPath);
      }
    }
  }
</script>

<style scoped>
.el-header, .el-footer {
    background-color: #B3C0D1;
    color: #333;
    text-align: center;
    line-height: 60px;
  }
  
  .el-aside {
    background-color: #D3DCE6;
    color: #333;
    text-align: center;
    line-height: 200px;
    height: 600px;
  }
  
  .el-main {
    background-color: #E9EEF3;
    color: #333;
    text-align: center;
    line-height: 160px;
  }
  
  body > .el-container {
    margin-bottom: 40px;
  }
  
  .el-container:nth-child(5) .el-aside,
  .el-container:nth-child(6) .el-aside {
    line-height: 260px;
  }
  
  .el-container:nth-child(7) .el-aside {
    line-height: 320px;
  }
</style>